getSubtaskDuration

calculates the combined duration of tasks nested in a project or another task.

Parameters

task_id

string|number

the task's id, root_id will be used if not specified

Returns

number

total duration of nested tasks

Example

const formatter = gantt.ext.formatters.durationFormatter();
//duration of the whole project
let duration = gantt.getSubtaskDuration();
 
console.log(formatter.format(duration));
 
//duration of the subproject
duration = gantt.getSubtaskDates(1);
 
console.log(formatter.format(duration));

Calculates the combined duration of tasks nested in a project or another task.

Tasks of the project type are not counted in the total duration.

The return value is calculated in duration units from the config.

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